DirkCheapSSR
What is it? The DirkCheapSSR is a very small, 4-channel SSR that has a maximum current capacity of 1 amp per channel. It is intended to be built directly into a display piece and is small enough to be built directly into the wiring and covered with shrink-tube. The original project arose in May 2012 and included a group buy. Follow this link to download the PDF that explains all you need to know about it:
http://doityourselfchristmas.com/wiki/images/f/fe/DirkCheapSSR_technical.pdf